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Polymeric microparticle acoustic panel and production method thereof

A technique of polymerizing particles and a production method, which is applied in the field of architectural decoration, noise-reducing sound-absorbing materials, and acoustic design. It can solve problems such as stress concentration and affecting the performance of composite materials, and achieve the effect of increasing strength and improving sound-absorbing effect

Inactive Publication Date: 2019-01-18
ZISEN ENVIRONMENTAL TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong van der Waals force between the graphene sheets, it is easy to form agglomeration between the sheets, resulting in stress concentration and affecting the performance of the composite material.

Method used

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  • Polymeric microparticle acoustic panel and production method thereof
  • Polymeric microparticle acoustic panel and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Select 98.04kg of 20-70 mesh machine-made sand, 1.95kg of polyurethane resin, 0.005kg of graphene, and 0.005kg of silane.

[0030] Mix the polyurethane resin, graphene dispersion and silane and stir thoroughly for 5 minutes, then irradiate with ultrasonic waves with a frequency of 50KHz and a power of 400w and stir for 5 minutes, then add machine-made sand and stir evenly to obtain a mixture; spread a layer of mixture in the mold Material, add grid cloth and then cover the mold, press molding to get graphene reinforced polymer particle sound-absorbing panel. Wherein the addition form of graphene is the graphene dispersion liquid that solid content is 2wt%, and dispersing solvent is ethanol.

Embodiment 2

[0032] Select 1.84kg of 20-40 mesh slag, 7.36kg of 40-70 mesh natural aeolian sand, 0.796kg of phenolic resin, 0.002kg of graphene, and 0.002kg of silane.

[0033] Mix the phenolic resin, graphene dispersion and silane and stir thoroughly for 10 minutes, then irradiate with ultrasonic waves with a frequency of 20KHz and a power of 100w and stir for 30 minutes, then add aeolian sand and slag and stir evenly to obtain a mixture; spread in the mold A layer of mixture, plus grid cloth to cover the mold, press molding to get the graphene reinforced polymer particle sound-absorbing panel. Wherein the addition form of graphene is that solid content is 1wt%, and dispersion solvent is N-methylpyrrolidone graphene dispersion liquid.

Embodiment 3

[0035] Select 5.76kg of 20-40 mesh manufactured sand, 3.84kg of 40-70 mesh natural aeolian sand, 0.398kg of furan resin, 0.001kg of graphene, and 0.001kg of silane.

[0036] Furan resin, graphene oxide dispersion and silane were mixed and then fully stirred for 8 minutes, then irradiated with ultrasonic waves with a frequency of 30KHz and a power of 300w and stirred for 15 minutes, then added machine-made sand and natural aeolian sand and stirred evenly to obtain a mixture; Spread a layer of mixed material in the mold, add mesh cloth to cover the mold, and press molding to obtain a graphene-reinforced polymer particle sound-absorbing panel. Wherein the graphene is added in the form of a graphene oxide dispersion with a solid content of 5 wt% and a dispersion solvent of water.

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Abstract

The invention discloses a polymeric microparticle acoustic panel. The polymeric microparticle acoustic panel comprises raw materials in percentage by mass as follows: 89%-98.5% of aggregate, 1.4%-10.7% of an adhesive, 0.003%-0.03% of graphene and 0.003%-0.3% of silane. According to a preparation method, the adhesive, graphene and silane are mixed, sufficiently stirred for 5-10 min, ultrasonicallyirradiated and stirred for 5-30 min, and then the aggregate is added and stirred uniformly, and a mixture is obtained; a layer of mixture is laid in a mold, gridding cloth is added, the mold is fullypaved, pressing molding is performed, and the graphene reinforced polymeric microparticle acoustic panel is obtained. A graphene sheet layer in the polymeric microparticle acoustic panel is stably dispersed in the adhesive, oxygen-containing functional groups on graphene or graphene oxide participate in a curing reaction of the adhesive, and strength of the polymeric microparticle acoustic panel is improved; by reasonable selection of the adhesive quantity, strength of the acoustic panel is guaranteed, the polymeric microparticle acoustic panel contains a large quantity of communicated micropores inside, NRC (noise reduction coefficient) of the polymeric microparticle acoustic panel is guaranteed, and sound absorbing effect of the polymeric microparticle acoustic panel is improved.

Description

technical field [0001] The invention relates to the field of sound-absorbing materials for architectural decoration, acoustic design and noise reduction, in particular to a multi-functional polymer particle sound-absorbing board added with graphene. Background technique [0002] In recent years, noise pollution has brought great troubles to people's lives. Traditional sound-absorbing materials such as mineral wool, rock wool, and centrifugal glass wool have some problems in terms of function, such as secondary pollution and fear of moisture. For this reason, many New sound-absorbing materials have been developed, such as aluminum fiber sound-absorbing panels, polyester fiber sound-absorbing panels, polymer particle sound-absorbing panels, and sandstone environmental-friendly sound-absorbing panels. The Chinese invention patent with the publication number CN102888902A discloses a sandstone environmental sound-absorbing panel, which is composed of four parts, natural round san...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/10C04B26/12C04B38/00C04B111/52
CPCC04B26/10C04B26/122C04B38/00C04B2111/40C04B2111/52C04B2201/50C04B14/06C04B14/024C04B24/42C04B14/068
Inventor 李航钱伟鑫沈加曙
Owner ZISEN ENVIRONMENTAL TECHNOLOGY CO LTD
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